Rivet-feeding device.



J. E"; PETERS. RIVET FEEDING DEVICE.- APPLICATION FILED JUNE 8. 1908.

942,864, I v Patented Dec.7, 1909.

'To all whom it may concern:

UNITED STATES PATENT onnmn.

JAMES E. PETERS, OF LOS ANGELES, CALIFORNIA.

Specification of Letters Patent.

RIVET-FEEDING DEVICE.

Application filed June 8,1908. SeriaL@437,284. 4 v

State of Galiforniaphave invented new and useful Improvements in Rivet-Feeding Devices, of which the following is a specification.

This-invention relates to a device for riveting together sections of sheet metal pipe or tubing and especially pipe which is of such small diameter as prec udes the possibility of the hand and arm of the operator or any manipulating tool being inserted therein.

Heretofore it has been necessary to' first insert a rivet into such a position as is shown in Figure 4- of the drawings and to then move the pipe onto an anvil so that the actual operation of riveting might be performed. This has involved needless waste of time and it is the prime object of my invention to provide a device where the rivets are constantly fed into a position inside the pipe to be placed in punchings at the joints thereof, and to also rovide means in close proximity to the fee ingmeans so that the pipe need only he moved a few inches to head the rivet from the outside.

In the accompanying drawings, forming a part of this spe'c1fication:Fig. 1, is a side elevation of my improved device. Fig. 2,- is a plan view of the same taken on line 22 of Fig. 1. Fig. 3, is an enlarged cross-section taken on line 83 of Fig. 2. Fig. 4,- is an enlarged longitudinal sectional view of the end of the rivet arm. Fig. 5,- is an enlarged cross section through the rivet chute taken on line 5-5 of Fig. 1.

In the drawings 5 designates a supporting frame upon which is mounted a head 6. Head 6 carries a horizontally extendin arm or riveting stake 7 which is of sufl icient length to accommodate the longest section of sheet pipe which is designed to beriveted to another section. Riveting arm 7 is provided with a longitudinal slot 8 in its'upper face and to one side of its center as clearly shown in Fig. 3, the configuration of this slot being similar to that of the rivets which it is desired to use upon the pipe. This slot is continued through head 6 as at 9 and a curved rivet chute 10 connects with a slot in the head, the sectional configuration of this chute being shown in Fig. 5. This chute has a funnel shaped mouth 11 into 'which rivets 12 may he usually inserted,- the rivets passing by gravity to a point adjacent the inner end of riveting. arm 7. A- transverse slot 13 is out across the inner end of riveting arm 7 this slot being. equal in depth to the depth of slot 8.- A wed e 14 is adapted to be reciprocated in this s 0t and to pass between ad acent rivets therein.- The rivets in slot 8 are thereupon forced outwardly by the distance of the width of wedge 14, this width bein 1 equal to the-diameter of a rivet head. T us the line of rivets in slot 8 is moved out the distance of the diameter of one rivet head upon each reciprocation of wedge 14:. Wedge 14 is 0 erated through a vertical arm 15 mount on a horizontal shaft 16 from a foot lever 17 placed upon the floor in a convenient posi tion below the outer end of the riveting arm, a spring 18 returning the wedge to its nor mal position as shown in Fig. 2. j

The outer end of slot 8 is sloped upwardly toward the surface of riveting arm 7- and as the rivets are pushed up this slot by the action of wedge 14 their ends emerge above the upper surface of the arm as shown in. Fig. 4. The length of the arm from wedge 14- to this slot is so arranged that when the wedge is pushed in by the operationof foot lever 17 the last one of rivets in the line of rivets in slot 8 is pushed up into this slot and its upper end pushed above the surface of the riveting arm. When the wedge is allowed to return to its normal position another rivet takes the place .of the one which was imme diately in front of the wedge, this rivet being pushed by gravitational action out of chute 10. Upon the re actuation of the wedge another rivet is forced to the position Patented ee. '7, 1909.

shown in Fig. 4. As soon as a rivet has been placed so that its end projects above the riveting arm the pipe is moved so that one of the joint punchings therein passes over the projecting end of the rivet. The pipe is then moved to the position shown in Fig. 4 so that a rivet is placed upon anvil 18 at the end of the riveting arm, this anvil being preferably formed of hard steel. Slot 8 is sloped directly up to the edge of the anvil so that the rivet may be gradually brought up thereto by simply moving the pipe upwardly after the rivet has been engaged in one of the joint punchings. After the inner head of the rivet has been placed upon the anvil the outer end may be flattened into a head by any operative means.

other and then placing one of the sections over riveting arm 7 with the joint between the two sections. Directly over die 19 a hole is then punched through both sections of the pipe and a rivet is then fed up into the sloping portion of slot 8 as before described. The projecting end of the rivet is then engaged in the hole'just punched and the rivet is moved up into the anvil to be secured in place. As many rivets as is necessary or desirable may be thusinserted in a single joint. It will be seen that after a section of pipe has once been placed upon the riveting arm it is only necessary to move it a very short distance for the insertion of each rivet as-the die where the holes are punched and the rivet in its position to which it is fed and the riveting anvil are very close to each other. This is a definite advantage over the form of ap aratus in which the rivet must be inserte by some means and then held in the perforation while the pipe is placed over the riveting anvil in order to head the rivet.

Having described my invention, what I claim as new and desire to secure by Letters Patent is z 1; In a rivet feeding mechanism, a suite ably mounted frame and. a longitudinally grooved riveting stake secured thereto, a slotted grooved rivet carrier mounted on the frame and communicating with the groove formed in the stake, and a rivet forcing means mounted on the frame and bination of a channeled stake adapted to receive a roW of up ended rivets and having a slot in the top through which the upper end of the rivets project, a rivet carrier communicating with said stake and adapted to feed rivets thereto by gravity, and means Y acting across the path of the channelformed in said stake to force the rivets forwardly.

4. In a rivet feeding mechanism, a channeled stake and a rivet carrier attached thereto, said carrier communicating with the channel in said stake, a reciprocating Wedge-shaped rivet feeding arm mounted in said stake and acting transversely across the path of rivet travel, and means to reciprocate said arm. I 5. In a rivet feeding mechanism, a channeled stake and a rivet carrier attached thereto, said carrier communicating withthe channel in said stake, a rivet forcing means mounted on the frame and operating transversely of the stake to force the rivets forwardly, and means to actuate said rivet forcing means.

In witness that I claim the foregoing I have hereunto subscribed my name this 1st day of June, 1908. I

J. E. PETERS.

Witnesses:

-EDMUND A. STRAUSE,

()LLIE PALMER. 

